/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 * <p>
 * https://www.renren.io
 * <p>
 * 版权所有，侵权必究！
 */

package io.renren.modules.sys.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import io.renren.common.exception.RRException;
import io.renren.common.utils.Constant;
import io.renren.common.utils.PageUtils;
import io.renren.common.utils.Query;
import io.renren.modules.sys.dao.SysRoleDao;
import io.renren.modules.sys.dao.SysUserDao;
import io.renren.modules.sys.entity.SysRoleEntity;
import io.renren.modules.sys.service.SysRoleMenuService;
import io.renren.modules.sys.service.SysRoleService;
import io.renren.modules.sys.service.SysUserRoleService;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * 角色
 *
 * @author Mark sunlightcs@gmail.com
 */
@Service("sysRoleService")
public class SysRoleServiceImpl extends ServiceImpl<SysRoleDao, SysRoleEntity> implements SysRoleService {
  @Autowired
  private SysRoleMenuService sysRoleMenuService;
  @Autowired
  private SysUserDao sysUserDao;
  @Autowired
  private SysUserRoleService sysUserRoleService;

  @Override
  public PageUtils queryPage(Map<String, Object> params) {
    String roleName = (String) params.get("roleName");
    Long createUserId = (Long) params.get("createUserId");

    IPage<SysRoleEntity> page = this.page(
      new Query<SysRoleEntity>().getPage(params),
      new QueryWrapper<SysRoleEntity>()
        .like(StringUtils.isNotBlank(roleName), "role_name", roleName)
        .eq(createUserId != null, "create_user_id", createUserId)
    );

    return new PageUtils(page);
  }

  @Override
  @Transactional(rollbackFor = Exception.class)
  public void saveRole(SysRoleEntity role) {
    role.setCreateTime(new Date());
    this.save(role);

    //检查权限是否越权
    checkPrems(role);

    //保存角色与菜单关系
    sysRoleMenuService.saveOrUpdate(role.getRoleId(), role.getMenuIdList());
  }

  @Override
  @Transactional(rollbackFor = Exception.class)
  public void update(SysRoleEntity role) {
    this.updateById(role);

    //检查权限是否越权
    checkPrems(role);

    //更新角色与菜单关系
    sysRoleMenuService.saveOrUpdate(role.getRoleId(), role.getMenuIdList());
  }

  @Override
  @Transactional(rollbackFor = Exception.class)
  public void deleteBatch(Long[] roleIds) {
    //删除角色
    this.removeByIds(Arrays.asList(roleIds));

    //删除角色与菜单关联
    sysRoleMenuService.deleteBatch(roleIds);

    //删除角色与用户关联
    sysUserRoleService.deleteBatch(roleIds);
  }


  @Override
  public List<Long> queryRoleIdList(Long createUserId) {
    return baseMapper.queryRoleIdList(createUserId);
  }

  /**
   * 检查权限是否越权
   */
  private void checkPrems(SysRoleEntity role) {
    //如果不是超级管理员，则需要判断角色的权限是否超过自己的权限
    if (role.getCreateUserId() == Constant.SUPER_ADMIN) {
      return;
    }

    //查询用户所拥有的菜单列表
    List<Long> menuIdList = sysUserDao.queryAllMenuId(role.getCreateUserId());

    //判断是否越权
    if (!menuIdList.containsAll(role.getMenuIdList())) {
      throw new RRException("新增角色的权限，已超出你的权限范围");
    }
  }
}
